英文關鍵字
orangutan
sad
bars
behind
zoo
wildlife
portrait
monkey
mammal
male
face
expression
primate
animal
ape
endangered
nature
brown
cage
hair
fur
huge
single
creature
captivity
adult
hand
old
hairy
conservation
big
orang
young
orange
wild
ponginae
prison
furry
pongo
borneo
sumatra
trellis
lonely
boring
bored
dejected
hungry
shaggy
redhead